Calculating-machine.



E. SCHUSTEH.

ULUULATING MACHINE.

APPLICATION FILED www, 1m,

Patented N ov". 7, 1911.

2 SHEETS-'SHEET l.

E. SGHUSTER.

UALCULATNG MACHINE.

APPLICATION TILBD 115111327 1911.

1,308,079. Panama No1/.7, 1911` 2 SHEETS-SHEET 2,

4tion an example embodying the same has ERNST SCHIUSTER, OF BERLIN, GERMANY.

carcnLATmG-MACHNE.

Specification of Letters Patent.

Patented Nov. "Z, 1911.

Application led .Tune 27, 1911. Serial No. 635,562.

and described in my copending application 5er. Nr. 507,839, tiled July 15, 1909, in

which two registering mechanisms are provided which coperate with the same setting mechanism.

My invention relates more particularly to the carrying mechanism. And the object of the improveu'lents is to provide a carrying nuechanism for the registering mechanisms which is simple in construction.

7With this object in view my invention consists in providing the same member, preferably in the form of a rocking lever, which is actuated by either one of the registering mechanisms for effecting the carrying operation.

F or the purpose of explaining the invenbeen shown in the accompanyingr drawings in which the same letters of reference have been used in all the views to indicate corresponding parts.

1n said drawings-li`igure 1, is a crosssection of the calculating` machine showing a side view of the setting mechanism, the registering mechanisms, and the carrying mechanisms, Fig. 2, is a similar cross-section showing the actuating member or lever for the carrying mechanisms in a dili'erent position, and Fig. 3, is a partial front view of the machine with the cover removed.'

On a shaft 35 mounted in the side walls of the casing ofthe machine a plurality of adjusting or setting disks 1 are located each of which is provided with nine teeth 2 adapted to be shifted outward into operative position by means of a cam disk the cam face 36 of which has been shown inv dotted lines in Figs. 1 and 2. Furthermore the said sett-ing disks carry two teeth 37, 37 for elfecting the carrying operation in the registering mechanisms. Normally -the said carrying teeth are in inoperative position in which they are rocked laterally and out of the plane of the teeth 2, and they are Iheld in this position by springs, as has been described more in detail in United States Patent to Hamann', Nr. 772,935, dated Oct. 25, 1904s. For performing a carrying operation the carrying teeth are4 adapted to 'be temporarily rocked into the plane of thea teeth 2 by means of a rocking lever 15. It willbe understood, that at a time only one of the teeth is thus rocked into operative position, one of them being used for addition or multiplication and the other one for subtraction and. division. On a shaft 3 disposed in front vof and below the shaft 35 one of the registering mechanisms is located which comprises a plurality of number disks 4 and gear wheels 5, one gear wheel being connected with each of the number wheels. The said gear wheels are in mesh with intermediary gear wheels 7 mounted on a common shaft 6. The teeth 2 and, under certain circumstances, either one of vthe carrying teeth 2, are adapted to operate the said intermediary wheel 7, and through the latter and the gears 5 the number wheels l. Below the shaft 3 and in front thereof a second registering mechanism is provided the number wheels Q and toothed gear wheels 10 of which are disposed on a common shaft S.' The latter are likewise adapted to be operated by the teeth 2 and 37 through the intermediary of spur gears 11, 12, and 13 mounted respectively on shafts 39, 40, and 14.

Adjacent to each of the gears 7 and 13 a rocking lever 15 is located which near its ends is formed with transverse slots 16 and 17 by means of which it is supported on the shafts 6 and 14 of the wheels 7 and 13. The front end of each of the levers 15 is provided at its lower side with a boss 1S having inclined side faces and normally extending into the path of a pin 19 secured to the side of the number disk 4. At its opposite side the lever is formed with a projection 20 and inclined cam faces 2l which are While the pins 29 operate through the inter-.

.the side faces ot'rt e number Wheels 9.

adapted to shift either one ofthe carrying teeth 37 .into operative position whereby the registering dislr of the next higher denomination is shifted one tooth, as has been described more in detail in the aforesaid patent to Hamann. rPhe lower and rear end ot' each of the rocking levers 15 is formed with a similar projection 9.2 and inclined cam faces 23 which are likewise adapted to shift the teeth 37 into operative position. it the opposite side the lever is pro 'ided with a semicircular boss 9.a. ,Each of the levers 15 is formed with a longitudinal slot 38 from which pins 26 and 27 actuated by a spring 25 project into the slots 16 and 17. The said pins engage with their front ends the surfaces of the shafts 6 and 111 and tend to yieldingly loclr the levers in position.

On the shaft 39 which carries the spur gears 11 bell crank levers 30 are mounted Which at one of their ends are 'formed with noses 28 similar in form to the noses 18 and extending in the aath of pins 29 secured to '1`he opposite arm or the said bell crank lever extends to a. point adjacent the rounded pro- 'jection 211 of the lever 15, and it is adapted When rocked by the pin 29 to shift the end of the lever 15 upward with its cam faces Q" inthe path ot the carrying teeth 37.

Normally the levers are in their inoperative positions in which the shafts n and 14 are in Contact with the upper side Walls of the slots 16 and 1T, and they are held in this position by the spring actuated pins ZG and 27. It however in one of the registering mechanisms a carrying operation must be performed, the coi'iperating end of the correspending lever 15 is rocked upward with the cam faces 21 or Q3 into the path of the corresponding teeth 1n ii the parts are shown in the `position in which the rear or lower end of the lever 15 has been rocked upward, so that carrying is performed in the lower registering mechanism, While in Fig. 2 the parts are shown in the position in which the front or upper end of the lever has beenroclred upward, so that carrying is performed in the upper registering mechanism. It will readily be understoochthat the pins 19 operate through the cam faces 18,

mediary of the bell crank lever 30 and the rounded projection 24. By the cam face 21 or 23 Which has thus been rocked upward one of the teeth 37 is shifted into the plane of the teeth Q, so that it engages the gear Wheel 7 or 13 of the next higher denomination and advances the saine one tooth.

To return the levers 15 into their normal or inoperative positions any known or preferred means may be provided. ln the oxample illustrated cam 'faces 38 are provided on the setting disks Which engage the rocked Loosnra ends of the levers 15 and force the same backward into inoperative positions.

l claim herein as my invention:

1. In a calculating machine, the combination with the setting mechanism adapted to have values set thereon, a plurality of registering mechanisms, and means to transmit the values set on the setting mechanism to said registering mechanisms, ot carrying mechanisms for said registering mechanisms adapted to be operated by said setting mechanism, and means adapted to be operated by both of said registering mechanisms to cause said setting mechanism to perform a carrying operation.

2. In a'calculating machine, the combination with the setting mechanism adapted to have values set thereon, a plurality ot' registering mechanisms, and means to transmit the values set on the setting mechanism to said registering mechanisms, of carrying mechanisms for said registering"mechanisms adapted to be operated by said setting mechanism, and a rocking member adapted to be rocked by said registering mechanisms and to cause said setting mechanisms to perform a Kcarrying operation in the registering mechanism.

3. in a calculating machine, the combination with a setting mechanism provided with teeth adapted to be shifted into operative positions. and a normally inoperative carrying tooth, and two registering mechanisms adapted to be actuated by the shifted teeth of Ythe setting mechanism and the carrying tooth, of a lever adapted to be rocked at each of its ends by said registering n'iechanisms and when rocked to shift said carrying tooth into operative position, and means to return said rocking lever into inoperative position.

1. ln a calculating machine., the combination with the setting mechanism adapted to have values set thereon, two registering mechanisms, and means to transmit the values set on the setting mechanism to said registering mechanisms7 of carrying mechanismsy for said registering mechanisms adapted to be operated by said setting mechanism, a rocking lever adapted to be rocked by one of said registering i'ncchanisms, and a rocking n'ien'i-ber adapted to be rocked at one end by said rocking lever and at its opposite. end by the registering mechanism which does not act on the rocking lever, said rocking member being adapted when rocked to cause said setting mechanism to perform a carrying operation in the registering mechanism which has rocked the rocking member.

5. ln a calculating machine, the combination with the setting n'icchanism adapted to have values set thereon, a registering mechanism, and means to transmit the values set on the setting mechanism to said registering mechanism, of carrying mechanism for said registering mechanism adapted to be'oper- In testimony whereof I hereunto afiix my ated by said setting mechanism, a rocking signature in the presence of two Witnesses.

member adapted when rocked to cause said setting mechanism to perform a carrying operation, a lever adapted -to be rocked by the registering mechanism and to rock said/ rocking member.

ERNST SCHUSTER.

Witnesses HENRY HAsPER, VOLDEMAR HAUPT. 

